Apparatus for washing grading, and classifying coal or other material.



v I. D. BAKER. APPARATUS FOR WASHING, GRADING, AND GLASSIPYING GOAL OROTHER MATERIAL.

Patented Nov;22, 1910.

APPLICATION FILED DEC. 6, 190B.

P. D. BAKER. APPARATUS FOR WASHING, GRADING, AND GLASSIFYiNG GOAL OROTHER MATERIAL.

APPLIQATION FILED DEC. 5,.1908.

Patented Nov. 22, 1910.

4 8HEETSSHEET 2.

:5: 11 fin m nlii 'll witnesses J1 40 fmz z F. D. BAKER.

' APPARATUS FOR WASHING, GRADING, AND GLASSIFYING GOAL OR OTHERMATERIAL.

APPLICATION FILED D1105, 1908.

Patented Nov. 22, 1910 Q SHEETS-SHEET 3.

i 5. 5 5 7 %/AVJ/ 7/ 27 F. D. BAKER. .r :PARATUS FOR WASHING GRADING,AND GLASS IFYING COAL OR OTHER MATERIAL.

4 SHEETS-SHEET 4.

Patented Nov. 22, 1910.

APPLIOATION FILED DEC. 6, 1908.

.30 the aforesaid relative-motion may-he con- While its upward movementisicomparatively better qualitynot 'thecoal to thetop'arid as unrrni)STATES PATENT OFFICE.

FRANK i). KER; or nEivvEn, ooL'oRADo. H APPARATUS. roe WASHING? GRADING,AND CLASSIFYING coat on OTHEkMATEhfhLQ 7 425; I r i Specification ofLetters: Pat'ent. p t ted lv 22, 19 191 f a licatio iiied-inecemb'er 5,1e08, Serial No. 466,185. t J is separated from the highest quality"which": N it passes over the top of the jig as aforesaidfi i ,Furtherprovision is made for separating? the rock or heavy worthless material,more" or less of which is taken from the mine with the coal. n importantfeature of my improvement is that thefunction of the a paratusis'coh-Zjf" a full, clear, and exactdescription of the intlnuouslycarried 0115 the di erent grades (sfl0 vention, such as will enableothers skilled coal or other materialsbeing automatically 'in the art towhich it appertains to. make and use the same, referencebeing had to theaccompanying drawings, and to the figures of reference markedthereonfwhichform a ,15 part of this specification.

My inventioit relates to improvements ,in means for washing, grading orclassifying coal or other materials, according tdtheir specific gravity,4 f .3 1 im 20 In this application the, use of the apparatus forcoal-washing and grading purposes will be described, though it must beunderstood thatthe invention may be employed for washing and gradingother materials. 25 My invention relates to improvements in apparatusforthe aforesaid purpose in ,whicl i the sorting action of abody of water,in m0- ti'on relative to the material toybe sorted, is employed. It.must be understood that To alljwhom it may concern; i I

Be it known that I, FRANK D. BAKER, a. citizen of the United States,residing in the city, and county ofDenver' and State of C010- 5 rado,have invented ccrtaln new and useful Improvements in Apparatus,forashing, Grading, and Classifying Coal or other Ma-. .terial; and Ido declare-the following to be Worthless material is alsoautomaticallydi's charged and kept'separate from the coal Having brieflyoutlined my invention well as the function it is intended 'tol v formfIwill proceed todescribe' thesam reference being made to theaccompanying' drawing in which is illustrated an embodi ment thereof. I5 7 5 In this drawing, Figure 1 is a vertical section taken throu "h theapparatus. Th s section may be said to be taken fonfl'the line 1-1-Fig.3. Fig. 2 is'a 'frziginentary vertical section taken on the line 221 0. Fig. 3 i in /order to illustrate the? dis. charge'pf the niddlingsgrade of" 'al from the Fig. 3 is a section talren' on' the line Fig. 2viewed in the-direction of arrow 3 in said -figure. Figfisa section 8taken on the line 4% Fig. 2- viewedfiiiythe. direction of arrow 4. Fig.5 is a section similar to F ig. 2 but taken on'the lihe fi o Fig, inorder to illustrate"the discharge, of the rock from thejig. v I a i Thesame referencecharacters indicate 'th ef tinuo'us, or pulsating incharacter, and that the pulsation may: be unior nulti-directiona'l inthe sense that the pulsation afl'orded theordinary plunger-type jig may3 .1w consideredto be iii-directional. a In this description theimprovementsare considered as being installed in'conjuncti-on' with coalwashing machinery in which a jig-tank and a mounted'to'reciprocatetherein are employed. The jig is reciprocated through theinst'rumentality of mechanism for. imparting a differential movement=thereto of such characterthat the downward stroke of the jigisrelatively ;rapid "same parts in all the views. Let the numeral '5designate a tanlrTin which a 6 is mounted to reciprocate Vertically"through the instrumentality ois ui t q i able" operatingmechanism mounted to. im} part a differential. reciprocating inoveiner si y rapidwvhile the upward strokefis sloW in'comp'arison, as heretoforeindicated;

' As shown in the draw'in oweristrans.

' slow'. During the downwardmovement of I r the jig,whosehott-omopeirtoi'perniiti'the niitted"froman operatngshaft'iutowhich entrance of water, the bnoya'ncyhottliegwa--'= powercom unica'te ter has a tendency-;to raise the-.l-ighter and t theoperation .goes ion; Pthe top "stratuni iof i coal .is .causedtoW153101m theltopvof the ig.' -1' In In gimprovadCQlfitrrictiona revisionis a f'fl ge slo f rsw fu qi lll fidiatwl nected with the short arm eacllever .made or. further classif removing th is a pitman 18. The lowerextremities of' these pitmen are pivotally connected with the jig asshown at 19. When this mechanism is in operation the differentialreciprocating movement heretofore described will be imparted to the jig.However, as noth ing is claimed upon the operating mechanism in thisapplication since it is substantially the same as set forth in PatentNo. 816,672, to Robert L. Martin, dated April 3rd 1906, it will not befurther described in detail.

The body of the jig is provided with a bottom 20 having relatively largeopenings 21 controlled by valves 22 which are adapted to open during thedownward movement of the jig for the purpose of allowing the water inthe jig-tank 23 to enter the lower compartment 24 of the jig. Aperforated bottom 25 separates the compartment 24 from the uppercompartment 26 of the jig.

The coal to be separated may be constantly delivered to the compartment26 of the jig. This compartment is subdivided by a partition 27 whosecentral portion extends farthest downwardly leaving a space 28 below,into which the rock 29' passes. The partition 27 on opposite sides ofthis central portion is com osed of short portions 30 leaving spaces 31elow their lower edges under which the middlings or second grade of coalpasses. The compartment between the partition 27 and'the front wall 32of the jig,

- 5 forms a sort of trapcand is subdivided into three distinctcompartmentsb partitions 33. The rock passes to the central compartment34 (see Fig. 5) while the middlings quality of coal passes to thecompartments 35 on opposite sides of the central compartment. Thepartitions 33 are connected by a number of transversely arranged rods 36upon which are mounted spacing sleeves 37 interposed between thepartitions.

The central compartment 34 is provided with a gate 38 which is com osedof two over-lapping arts 39 and 40 the latter being fixed) w ich areadjustably connected by means of bolts 41 passing through slots 42-formed in one of the members, whereby the gate is extensible. To theupper edge of this gate is attached a rod 43 having an upper threadedextremity 44 upon which ismounted a nut 45 which is an integral part ofa hand wheel 46 by which the position of the movable gate 39 may beregulated. in each compartment 35 is located a similar ate 47 composedof members 48 and 49 (the atter being fixed) connected by bolts 50assing throughslots 51 formed in one o the members. The upper edges ofthese gates are relatively high, since the middlings quality of coal inorder to escape from these trap compartments must pass over the upper edes of the gates.

t the bottom of the central trap compartment 34 is formed an outlet 52coiltrolled by a forwardly swinging gate 53 through which the rock 29passes into the 1, jig-flank 23 below the jig. The bottom of" this tankis inclined, as shown at 55 and its 70 lower portion is provided with ascrew conveyer 56 adapted to remove the rock from the tank. Locatedadjacent the jig-tank is a settling-tank 57 adapted to receive the bestquality of coal which may be designated as 58, and which passes over thetop of the jig. In the bottom of this compartment is a screw conveyer59.

Within thetank 57 is formed a com artment 60 which is in communicationwit 1 the trap compartments 35 of the jig by means of openings 61 fromwhich pipes 62 project upwardly and are open to receive hollow members.63 connected with the bottom of the jig and telescoping in the pipes 62.

The middlings quality of coal passes through the members" 63 and 62 andenters the compartment 60 in the bottom of which is located a screwconveyer 64.

When the apparatus is in use a vertically reciprocating movement isimparted to the jig within the jig-tank and under the infiuence of thismovement the material fed to the jig rapidly stratifies, the heavier orrock or slat portion of the material 29 assuming the lowermost position,the middlings quality 65 the position next above, and the highest grade58 assuming the uppermost position. This separation is brought aboutlargely through the buoyancy of the 100 water during the relativelyrapid downward movement of the jig. During this operation the highestquality of coal is carried over the top of the ji and discharged intothe tank 57, while t e middlings quality 5 first enters the trapcompartments 35, passing under the portions 30 of the partltion 27vandfinally passes over the tops of the gates 47 and thence downwardly,escaping through the openings 71 controlled by the 110 outwardlyswinging gates 72 into passages 73, thence to the hollow members 63,thence to the pipes 62, thence throu h the opening 61 to vthecompartment 60 w once it is removed by the screw conveyor 64. Finally115 the rock passes from the jig compartment 26, under the centralportion of the partition 27 through the space 28 and into the centraltrap compartment 34, and thence over the relatively short gate 38 andthence 120 downwardly through an opening 52 controlled by a gate 53 intoa tank 23 whence it is removed by the screw conveyer 56.

In explanation of the illustration of the action of the material inFigs. 2 and 5. it 125 may be stated that as the jig moves rapidlydownward, in accordance with the difi'erential principle heretoforeexplained, the water will have a tendency to hold the uppermost layer ofmaterial in any trap compartment in sue ension' whereb thesaid ina terialtis given an opportunity to pass 'overJthe top coal, as shown in F ig.-2. Duringthe up ward motion of the jig after the downward motionoutlined above, the xweight'ofgood coal and of middlings coal above therock is" sufiicient to cause a flow of rock through the opening 28,below the partition 27, and thence into cpmpartment 34 and. to cause therock to rise in reason the middlings grade of coal in compartment 35rises approximately to the top of gates 47. Thus atthe end of the upwardmotion of the jig the materialsin compartments 34 and 35 are incondition to pass over the tops of gates 38 and 47 respectively on theSucceeding downward motion of the jig as already outlined. It is thecombina tion ofthese two principles which causes a practicallycontinuous discharge of the material from the jig whereby therun-of-mines product is separated into three grades, as heretoforeexplained, the separated material being discharged from the jig intoseparate compartments simultaneously with the feeding of the materialinto the main compartment of the jig.

Each gate 49 is provided with an upwardly projecting stem 66 having itsupper extremity threaded as shown at 67 and engaged by a nut 68 integralwith a hand wheel 69 for regulating the position of the gate.

The various subdivisions 34, 35 and 35 are .vented by the use ofopen-ended tubes or pipes 70 connected with the respective compartmentsand having their upper extremities located above the level of the waterin the apparatus. In this manner provision is made for producing anupward current or circulation within the trap compartment of the jig,whereby the buoyancy of the water is caused to act upon the material inthe said compartment for the purpose setforth.

Each subdivision of the trap compartment is provided with an outlet 71controlled by an outwardly swinging gate or valve 72 which allows themiddlings grade of coal to enter a downwardly extending passage 73 whichcommunicates with the discharge member 63 connected with the jig andtelescoping within the member 62 as heretofore explained.

In the event that the passage 73 should hecome'stopped, access' maybegained there to for the purpose of removing the difficulty, through apassage 74 formed in the front wall 32 of the jig and normally closed bya plug" 75.

Having thus described my invention what I claim is:

1. In an apparatus for washing, grading compartment 34 approximately tothe top of gate 38. For a similar of two members, one of ed to beadjusted in relation to the-other,

.which the nation of a jig provided with suitable means for'causinga"j1gging action in the material to. be treated, a partition having itslower edge varying in height from the bottom of the jig, said partitiondividing the jig into a main compartmentand a trap compartment,tl1e trapcompartment having anum- .ber of partitionsforming the said compartmentinto a number of subdivisions, the said subdivisions haying gateslocated therein and over which the varying grades of ore are to passrelative to the varying height of the said gates, each of said gatesconsisting said members adapt.- and to'va-ry in height relative to thevariation in height. of the first named partition, from the bottom ofthe jig, whereby the heavier stratum of material is caused to cnter onesubdivision of the trap compartment, while the lighter grade of materialoccupying an upper stratum, is allowed to enter another division andconduits communicating with the said subdivisions for conveying theseparated material therefrom, substantially as described.

2. An apparatus for washing and grading or'classifying coal or othermaterials according to their specific gravities, consisting-of a jighaving a transverse partition separating the jig into a main compartmentand a trap compartment, the said partition extending to a predetermineddistance from the bottom of the jig and provided with a centraldepending portion extending nearer the bottom of the jig than the endsthe trap compartmeiit formed by the said partition having a number ofpartitions .yihgcoal or eth r materials, ac-

of the partition,

abutting atone of their ends againstthc'first named partition, the saidpartitions forming the trap compartment into a number of subdivisions,the said subdivisions having gates located in varying grades of ore areto pass through said subdivisions, each of the said gates consisting oftwo members, one of said memhls adapted to be adjusted in relation tothe other, and means for imparting a suit able action to the to causethe material of varying grades to pass over the respective gates,substantially asdescribed.

3. In apparatus for washing,grading or classifying coal or othermaterials according to their specific gravities, the combination of a'"for producmg a jigging action in the material to be treated, said jigbeing provided with a screen upon which the material rests, and apartition separating the jig into a main compartment and a trapcompartment, the said partition varying in height from the bottom of thejig to its lower edge, the trap compartment formed by the said therespective subdivisions over 11g provided with suitable means partitionhaving a plurality of partitions separating the same into a'number ofsubdi- ,visions, vertically adjustable sites located named partition,thereby forming a vertical passagebetw'een the first partition and the15 gates through which the material is to ass to be discharged-over thegates, and con uits communicating with the said subdivisions forconveying the material therefrom.

In testimony whereof I afi'ix my signature 20 in resence of twowitnesses.

FRANK 1). BAKER.

Witnesses:

W. C. KUNEY, H. H. STEM.

